Package org.apache.vxquery.runtime.functions.base

Class AbstractTaggedValueArgumentUnnestingEvaluator

java.lang.Object

org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentUnnestingEvaluator

All Implemented Interfaces:

org.apache.hyracks.algebricks.runtime.base.IUnnestingEvaluator

Direct Known Subclasses:

ChildPathStepUnnestingEvaluator, DescendantOrSelfPathStepUnnestingEvaluator, DescendantPathStepUnnestingEvaluator

public abstract class AbstractTaggedValueArgumentUnnestingEvaluator
extends Object
implements org.apache.hyracks.algebricks.runtime.base.IUnnestingEvaluator

Field Summary

Fields

Modifier and Type	Field	Description
protected PointablePool	ppool
protected TaggedValuePointable[]	tvps

Constructor Summary

Constructors

Constructor	Description
AbstractTaggedValueArgumentUnnestingEvaluator(org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator[] args)

Method Summary

Modifier and Type	Method	Description
void	init(org.apache.hyracks.dataflow.common.data.accessors.IFrameTupleReference tuple)
protected abstract void	init(TaggedValuePointable[] args)

Methods inherited from interface org.apache.hyracks.algebricks.runtime.base.IUnnestingEvaluator

step

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

tvps

protected final TaggedValuePointable[] tvps

ppool

protected final PointablePool ppool

Constructor Detail

AbstractTaggedValueArgumentUnnestingEvaluator

public AbstractTaggedValueArgumentUnnestingEvaluator(org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator[] args)

Method Detail

init

public final void init(org.apache.hyracks.dataflow.common.data.accessors.IFrameTupleReference tuple)
                throws org.apache.hyracks.algebricks.common.exceptions.AlgebricksException

Specified by:

init in interface org.apache.hyracks.algebricks.runtime.base.IUnnestingEvaluator

Throws:

org.apache.hyracks.algebricks.common.exceptions.AlgebricksException

init

protected abstract void init(TaggedValuePointable[] args)
                      throws SystemException

Throws:

SystemException